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At lunch, Kira eats either a burrito containing 490 milligrams of sodium or a peanut butter sandwich containing 700 milligrams of sodium. Her doctor told her to reduce her sodium to no more than 4,000 milligrams per week. Which inequality represents x, the number of microwave burritos, and y, the number of peanut butter sandwiches, she can eat each week?

Verified Answer :

With x representing the number of microwave burritos and y the number of peanut butter sandwiches, Kira's sodium intake may be represented by the inequality, 

                                            490x + 700y ≤ 4,000

This means that Kira's total sodium intake from burritos and peanut butter should be less than or equal to 4,000 per doctor advice. 

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